Method for preparing dihydric phenols

Details Method for preparing dihydric phenols Method for preparing dihydric phenols

1994-05-02

1995-06-20

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568741, 568803, C07C 3760, C07C 3700

Patent

active

054262445

ABSTRACT:
Phenols are reacted with a hydrogen peroxide in the presence of a crystalline titanosilicate catalyst and a cyclic ether, such as dioxane, as a solvent. The method provides especially high para-selectivity compared with conventional methods, and, at the same time, provides high yields of dihydric phenols versus hydrogen peroxide.

REFERENCES:
patent: 3914323 (1975-10-01), Maggioni
patent: 4533766 (1985-08-01), Drauz et al.
patent: 4578521 (1986-03-01), Chang et al.
Catalysis Letters, vol. 1, pp. 81-84, 1988.
Chemical Abstracts, vol. 112, No. 24, p. 128, Jun. 11, 1990.

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